then after that finished, they took us one by one into rooms and ran our ids and let us go. said that the card room will be closed for the remaining of the day. >> reporter: for most of the morning an alphabet soup of agents went in and out of the casinos. fbi, irs, dea, doj, emeryville pd, oakland pd. same scene at the artichoke joe's casino in san bruno, where you can add the san bruno pd into the law enforcement mix. the state department of justice says the operation was called, kung fu panda, and focused on loansharking, extortion, drug distribution and illegal gambling. agents on the scene did not want to say what was going on. >> this is a casino. is there illegal gambling? >> i can't go into details. >> everybody came out with hands, guns on the -- hands on their guns and just looking around the corner we were like, whoa. and then they just filled the room. that's probably about 70 to 80 agents in there. it was quite scary. >> reporter: the agents apparently tried to calm the people who were gambling when the raid went down. >> it's okay. it's about the casino. we are